Air conditioning apparatus for storage rooms



May 10, 1932. c. A. MOORE 1,358,023

AIR CONDITIONING APPARATUS FOR STORAGE ROOMS Original Filed March 18, 1924 4 Sheets-Sheet 1 L v J VZ'rZ/erz Zw" (Via/"16,5 4717007 6 May I0, 1932.

c. MOORE AIR CONDITIONING APPARATUS FOR STORAGE ROOMS Original Filed March 18, 1924 4 Sheets- Sheet 2 HHHHHHHUMHHHHNHMH jrzfniar Cizarles JZ [1 07 3 1.7370 Wiley;

May 10, 1932. a A. MQQRE 1,858,023

' AIR CONDITIONING APPARATUS FOR STORAGE ROOMS Original Filed Marqh 18. 1924 4 Sheets-Sheet 3 Fig.6

jfll/ 72 for 67242 1 5 j 17002 6 May 10, 1932. c. A. MOORE 1,858,023

AIR CONDITIONING APPARATUS FOR sToRAgE ROOMS Original Filed March 18, 1924 4 Sheets- 4 Q kz 15 w -7 53 52 29 g 69 61 f L w 51 47 a 6:6 51 g I JL E Iii/72507 mama. Mai 1 f CHARLES A. moonn, or EDINA, mnmnsora m'oonprrronme APPARATUS non sroman 3001128 Application filed March 18, 1924, Serial No. 700,060. 'Benewed .1)ecembe"1" a, 1029. Y

My invention relates to improvements in air conditioning apparatus for storage rooms.

An object of the invention is to supply improved and eflicient apparatus for conditioning the atmosphere in storage rooms, the same being adapted to provide for effective ventilation', without or in combination with heat-.

ing or with refrigeration.

A further object is to supplyin an apparatus-of the instant nature, an improved temperature aflectin appliance operating in accordance with t e natural laws to provide ventilation, the same being convertible for primary heating or refrigerating purposes and serving naturally 'under its converted uses to an ent convective and diffused circulation 0 air in the system normally effected thereby.

Another'object is to provide for forcing ventilation, au ented or not by the heating or coolin medium in the temperature a ecting appliance, whereby convective and dif: fused movement of air is stimulated and further heated or refrigerated to compensate for the relatively larger volume of air employed in the conditioning process operating at its maximum capacity; 1

With the foregoing and other objects in view, which will appear in the following description, the invention resides in the novel combination and arrangement of parts and in the details of construction hereinafter described and claimed.

In the drawings, Fig. 1 is a view partly in elevation and partly in section, the same illustrating a housing and a storage room structure associated therewith, also the temperature afi'ecting appliance and companion devices in said housing, certain of the bafiies in the housing being omitted and broken away for the sake of clearness; Fig.2 is a horizontal sectional view taken on 'the line 22 of Fig. 1; Fig. 3 is a vertical sectional view taken on' the line 3-3 of Fig. 2; Fig. 4 is a similar view in detail taken on the line 44 of Fig. 1 Fig. 5 is a vertical sectional view in detail taken on the line 5-5 of Fig. 1, the upper portions ofthe tiers of coils being broken away at the upper portion of the housing for the sake of clearness; Fig: 6 is a after referred to as perspective view in detail of a pair of con- 'duits for a stora e room; .Fi 7 is a vertical, central, sectional view 0 the temperature affecting appliance, said view being taken as on the line 7-7 of Fig. 1; Fig. 8

is a horizontal sectional view in detail taken on the line S8 of Fig. 7; Fig.9 is a plan view, indetail, of the temperature affecting appliance and Fig. 10 is a View largely illustrating the principal features of the apparatus in simple, but purely diagrammatic form.

In the illustratedem bodiment of my invention, a housing A surmounts'a plurality of superimposed storage rooms B. A part1- tion 10 in the housing A divides the'space therein into an appliance chamber a, and a coil chamber 1), which, at times, are hereinrimary and secondary chambers, respective y. Each storage room B has two conduits 11 and 12 therefor, the former leading downward from a point in the floor of the coil chamber to the ceiling of the room, thence along the ceiling medially longitudinally thereof in the form of a branch 11. The companion conduit 12 for each conduit 11 leads downward from a oint' near the ceiling of the appliance cham er a to the ceiling of its respective storage room B, thence along said ceiling, closely parallelling branch 11, in the form of a branch 12. Said conduit branches 11 and 12' are spaced slightly from their respective ceilings,

the secondary chamber 1) and the outlet 16 thereof into the primary chamber a. These blowers are independently operable and like the temperature affecting appliance C will be more fully hereinafter described.

Tiers of connected pipes or coils 17 are arranged in groups in the secondary chamber 6 each of the former having a longitudinal slot I and in connection with baflles 18, 19 and 20, form a winding ath (Fig. 2) for air from the outlet 14 of the blower D and from a port 21 in the partition 10 to the conduits 11, which, as above explained communicate with said chamber 6. The port 21 just mentioned is located at the bottom of the partition'10 and is provided with an adjustable closure 22, a similar adjustable closure 23 being provided for an elevated port 24 in said partition 10. In one tier of pipes 17 in each of the central groups, the pipes are arranged closely together and in such relation constitute bafl'le and connects, within the secondary chamber 6, with the pipe 49 near its upper end. The end of'said second inter-chamber duct 55 within the primary chamber a is supplied with branches 56, 57, the former having a damper 58 therein and connecting with the terminal 29 of the apparatus duct 0, while the latter branch has a damper 59 therein and is connected with the terminal 31 of the apparatus duct 0 The upper ends of the pipes 48, 49 are respectively fitted with dampers 60, 61, while the lower ends of said pipes are respectively fitted with dampers walls with which the baifies 18, 19, 'are as- 62 63 sociated.

The temperature affecting appliance C includes two upright ducts c and 0 The outer duct 0 consists of a cylindrical base 25, coiled pipe 26 carriedby the base and constituting a cylindricalcontainer body 26, a cap 28 on said body and a tubular terminal 29 rising from said cap 28. The inner duct 0 includes a tubular body 30 spaced axially within the container body 26, said body 30 having a tubular terminal 31 rising therefrom through the cap 28 of the outerduct 0'. The terminal 29 is fitted near its upper end with. a valve or damper 32, a similarvalve 33 being similarly applied to the terminal 31. The base 25 of the outer duct 6 is formed with a port 34 fitted with a damper 35. The lower end of the innerduct 0 has a branch 36 leadin outward through the base 25 and the wall 0 the housing A to the outer air. Said lower end of said duct 0 also 'has a branch 37 leading outward through said base 25 into the primary chamber a and is further supplied with a port 38 opening into the outer duct 0' at the base thereof. The branches 36, 37 and port 38 are respectively fitted with dampers 39, 40 and 41 and a fourth damper 42 is arranged in the duct 0 just beneath the junction of said duct with the branch 3,7. A flue 43 rising from the housing A joins the two terminals 29, 31 of the ducts 0', a through two branches 44, 45, said branches being respectively fitted with dampers 46, 47.

Associated with the temperature affecting appliance O are two upright pipes 48, 49, the same being located in the secondary chamber 1) and ending short of the ceiling thereof at their upper ends and short of the floor of said chamber at their lower ends. An inter-chamber duct 50 reaching horizontally through the partition 10 connects with thepipe 48 in the secondary chamber 6 near the upper end of said pipe. The end of said inter-chamber duct within the primary chamber a is supplied with branches 51, 52, the former having a damper 53 therein and connecting with the terminal 29 of the apparatus duct 0', while the latter has a damper 54 therein and is connected with the terminal 31 of the apparatus duct 0 A second inter-chamber duct 55 reaches horizontally through the partition 10 in use, the apparatus is operated to meet practically every need in properly conditioning the air in the storage rooms for the preservation of perishable lading therein. The apparatus alone and without the use of the blowers D, E and coils 17 suflices under many conditions, but when inadequate is augmented by the use of said blowers and coils.

Under primary refrigeration, a cooling medium is introduced to the coiled pipe forming the body 26 of the duct 0', the eflect of which is to produce a downward movement of air in both of the ducts 0' and 0 With dampers 32, 35a'nd closure 22 open. air descends from the upper portion of chamber a,through terminal 29 and duct 0 into the lower portion of said chamber, thence passes said open 010- sure 22 and descends through conduits 11 and branches 11 into the rooms B. Rising along the relatively warm walls' of said rooms, air ascends to branch conduits 12 thence passes through conduits 12 back to the ceiling of chamber a. With dampers 33, 42 and 41 open, air also may descend from the upper portion of chamber a to the lower portion thereof through terminal 31, duct 0 and the lower portion of duct c'., In addition to this simple circulation of refrigerated air in the rooms 13, the user may introduce fresh air from the outside and expel used air from the system. This is accomplished by opening damper 46 to admit air from the flue 43 to the terminal 29 and by opening damper-39 with dampers- 40 and 41 closed to direct the descending air in duct 0 to the outside through branch 36. And any recirculation of air in the rooms B may be avoided by closing damper 32 in terminal 29, whereby none of the previously used air is permitted to enter the appliance C through an avenue opening back into chamber a. To increase the refrigerating effect produced in introducing a cooling medium to the coiled pipe forming the body 26 of duct 0', a similar medium is introduced to the coiled pipes 17in chamber 6. Under this condition and with closure 23 open, air coming into chamber a from conduit 12 may pass into chamber 1). Such air, cooled by the coils 17, will descend in chamber 12 and enter conduits 11 through "which refrigerated air from the appliance C passes to all of them. And such air may be put. through duct to the outside by opening damper'5'4' or damper 59, dampers 53 and 58 being closed. To stimulate the-movement of .air in the system under refrigeration and to increase the supply of fresh air, when ventilating alone or under combined ventilation and recirculation, blower D is set in operation, with closures 22 and 23 shut. Air from chamber a then enters chamber 1) untler pressure, which is exerted to impel the refrigerated air into conduits 11 and back through conduits 12, all in the direction of movement under gravitation. If it should be desired toset up a local recirculation of some of the air in the chambers a'and b, the same may be accomplished by opening dampers 62 and 53 or 63 and 58 or all of them, whereupon air will be forced up in pipe 48 or pipe 49 or both to terminal 29'where it joins the air flowing downwardly therethrough into duct 0'. Instead of setting up said local recirculation, dampers 53 and 58 may be closed and damper 54"or 59, or both,-opened to permit of the expulsion of air to the outside from the floor of chamber 6, through terminal 31, duct 0 and branch 36.

A heating medium may be introduced to the coiled pipe forming the body 26 of duct 0 and lower E started with closures 22 and 23 shut. Air is then drawn into chamber I) from the rooms B through conduits 11, thence blown into chamber a, whence air is impelled past open damper 35, thence blown into chamber a, whence air is impelled past open damper 35, thence upward in duct 0 and terminal 29 past open damper 32 into the upper portion of the chamber a, thence 1s impelled down conduits 12 to the rooms, thus completing a heating cycle. Fresh air may be taken into the circulation by opening dampers 60, 54, 42 and 39 and closing dampers 41 and 40, the fresh air from without finding ingress to chamber 1) on the suction side of blower E through branch 3'6, duct 0 terminal 31, branch 52, duct 50 and pipe 48. Air is exhausted from the system by opening damper 46,- thus furnishing a way for the egress of air from terminal 29 through flue 43.- A heating medium introduced to the coils 17 augments the heating capacity of the system as will be readily comprehended.

Without the use of a heating or cooling medium, a combined forced ventilation and recirculation may be had by putting the blower E into operation and shutting closures 22, 23. With-dampers 47, 54 and 62 open and dampers 40 and 42 closed, fresh air will be drawn from the outside through flue 43, terminal 31, duct 50', pipe 48 and chamber 7) to blower E. Air-will also be drawn from the rooms Bthrough conduits 11. Issuing from saidblower E air is forced into chamber a, a part of it being impelled back to rooms B through pipe 12 and a part thereof forced to the outside past open dampers 35, 41 and 39 through the lower portion of duct 0' an through branch 36. V

A natural internal circulation of air in the system, without the use of a heating or cooling medium, may be had with or without admitting and exhausting air. For example, if it is colder outside than inside, air settling along the walls of chambers a and b flows from the floors of said chambers down through conduits 11 to rooms B. Rising centrally of said rooms B, air returns to chambers 11 and I) through conduits 12. If it is desired to freshen the air in chamber a, air from without will ascend to the ceiling of said chamber through branch 36, past open dampers 39, 41, thence upward through. duct 0 and thence through terminal 29 past open damper 32. Compensating for the air finding ingress to chamber a, air is exhausted from the floor of said chamber, the same ascending through branch 37, past open damper 40, thence upward through duct 0 thence through terminal 31, thence pastopen damper 47 and thence out through flue 43.

Thus, in the different movements of air arranged to provide the desired atmospheric conditions in the rooms B, it will beunderstood that the natural tendency of the air to rise or fall according to the relative temperatures is employed to advantage- Changes in the specific form of my invention, as herein disclosed, may be made within the scope of what is claimed without .de-

parting from the spiritof my invention.

Having described my invention, what I the combination with a structure constituting a plurality of superimposed-storage rooms, a housing superimposing said structure, a partition in said housing forming afirst chamber and asecond chamber, said partition having an upper and a lower port therethrough, an adjustable closure for each port, apair of conduits for each room, each conduit having a horizontal branch reaching through the upper portion of its respective room, one conduit communicating with the second chamber at thebottom'thereof and having a longitudinal opening in the lower side of its horizontal branch, the other conduit communicating with the first chamber at the top thereof and having a longtiudinal opening in the upper side of its horizontal branch, an appliance in the first chamber including two upright ducts, means for affecting the temperature thereof, one duct havlng a 1. In an apparatus of the class described,

, in communication with the first chamber,

valved means associated with said ducts and selectively adapted to bring the upper ends thereof into communication with the outer air and with the first chamber, valved means associated with the lower end of the second duct and adapted selectively to bring the same into communication with the outer air, the first chamber and the first duct, a pair of upright pipes in the second chamber, valves at the ends of said pipes, inter-chamber ducts for said pipes, each inter-chamber duct being oined at one extremity with its respective pipe near the upper end thereof and having branches at its other end connected with the appliance ducts near their upper ends, valves in said duct branches, temperature affecting means in the second chamber and blower mechanisms selectively operable for blowing air into the second chamber from the first chamber and vice versa.

2. In an apparatus of the class described, the combination with a structure-including a storage room, and a chamber superimposing said room, a pair of conduits for said storage room, one leading from the upper 'portion of the room to the upper portion of said chamber andthe other from the lower portion of said chamber to the upper portion of said room, and an appliance in said chamber comprising two upright ducts and means for affecting the temperature thereof,. one

. duct opening at its upper end near the ceiling of the chamber and at its lower end into the outer air, the other duct opening at its upper end into the outer air and at its lower end into the chamber.

3. In an apparatus of the class described, the combination with a structure including a plurality of storage rooms and a chamber associated therewith, a pair of conduits for each storage room, each of saidpairs of conduits bringing-its respective stora e room into communication with said cham er, one conduit of each pair leading from the upper portion of a room to the upper portion of said chamber and the other from the lower portion of said chamber to said room, and two ducts in said chamber, one duct opening at its upper end near the ceiling of the chamber and at its lower end into the outer air, the other duct opening at its upperend into the outer air and at its lower end into the chamber.

4. In an apparatus of the class described, the combination with a'structure including a storage room and a chamber, a pair of conduits bringing the storage room into-communication with said chamber, one conduit leading from the upperportion of the room tothe upper portion of said chamber and the other from th e lower portion of said chamber to said'room at an elevation beneath the opening of the other duct into said room,

and an appliance in said chamber com rising two upright ducts and means for a ecting the temperature thereof, the upper end of one duct'opening near the ceiling of the chamber, the lower end of said duct having communication severally or simultaneously with the outer air and with the chamber, the lower end of the other duct having communication with said chamber and the upper end thereof having communication severally or simultaneously with said chamber and the outer air.

5. In an apparatus of theclass described, the combination with a structure including a storage room and a first chamber and\a second chamber superimposing said room, said chambers being in valved communication, one with the other, at the upper and lower portions thereof, a pair. of conduits, bot-h opening at their lower ends into the storage room, one opening at its upper end in the upper portion of the first chamber, the other opening at its upper end at the lower portion of the second chamber, an appliance in the first chamber comprising two upright ducts and means for affecting the temperature thereof, one duct openingat its lower end into the outer air, the other duct communicating at its upper end with the outer air and opening at its lower end into the first chamber and temperature affecting means within said second chamber.

6. In an apparatus of the class described, the combination with a structure including a storage room and a first chamber and a. second chamber superimposing said room, said chambers being in valved communicationone with the other at the upper and lower portions thereof, a pair of conduits, both opening. at their lower ends into said storage room, one opening at its upper end in the upper portion of the first chamber, the other opening at its upper end at the lower portion of the second chamber, an appliance in the first, chamber comprising two upright ducts, means for aflecting the temperature thereof, one duct opening at its upper end near the ceiling of the first chamber and at its lower end into the outer air, the other duct communicating at its upper end with the outer air and opening at its lower end into the first chamber, a passageway leading from the upper portion of the second chamber to said first duct of the appliance at its upper end and temperature affecting means within said second chamber. a

7. In an apparatus of the class described, the combination with a structure including a storage room and a first chamber and a second chamber superimposing said room, said chambers being in valved communication, one with the other at the upper and lower portions thereof, a pair of conduits, both opening at their lower ends into said storage room, one opening at its upper end in the upper portion of thefirst chamber, the other e opening at its upper end at the lower portion of" the second cham er, an appliance in the first chamber comprising two upright-ducts.

and means for affecting the temperature thereof, one duct opening at its-upper end near the ceiling of the first chamber and at its lower end into the outer air, the other duct communicating at its upper end withthe outer air and opening at itslower end into the firstchamber, a passageway leading from the upper portionof the second chamber to said second duct of the appliance at its, upper end and temperature affecting means within.

chambers being in valved communication, I

one with the other, at the upper and lower portions thereof, a pair of conduits, both opening at their lower ends into said storage room, one opening at .its upper end in the upper portion of the first chamber, the other opening at its upper end at the lowerportion of the second chamber, an appliance in the first chamber comprising two upright ducts and means .for affecting the temperature thereof. one ductopening at its upper end near the ceilingof the first chamber and at its lower end into the-outer air, the other duct communicating at its upper end with the outer. air and opening at its lower end into said first chamber, an inter-chamber'duct leading from the upper portion of the second chamber to the first chamber, branches leading from said inter-chamber duct,'one joining said first duct near the upper end thereof and the other joining the said second duct near its upper-end. valves in said branches and temperature affecting means within said second chamber.

9. In an apparatus of the class described,

'' the combinationwith a structure including a storage room and a first chamber and a second chamber superimposing said room,'said chambers being in valved communication, one with the other, at the upper and lower portions thereof. a pair of conduits, both opening at their lower ends-into said storage room, one opening at its upper end in the upper portion of the first chamber, the other opening at its upper end at the lower portion of the second-chamber, an appliance in the first chamber comprising two uprightducts and mean-s for affecting the temperature thereof. one ductopening at its upper end near the ceiling of the first chamber and at its lower end into the outer air, the other duct communicating-at its upper end with the outer air and opening at its lower end into the first chamber, a passageway leading from the lower portion of the second chamber to said first duct at the appliance at its upper end and temperature affecting me an s within said second chamber. g

10. In an apparatus of the class descnbed,

the combination with a structure including I a storage room and'a first chamber and a second chamber-superimposing said room, sa d chambers being in valvedcommunicatmn, one

with the other, at the upper and lowerpor-zv tions thereof, a pair of conduits, both opening at their lower ends into said storage '15 room, one opening at its upper end in the upper portion ofthe first chamber, the other" opening at its upper end at the lower portion of the second chamber, an appliance in the] first chamber comprising two upright ducts and means for affecting the temperature thereof, one duct opening at' its upper end near the ceiling of the first chamberand at its lower end into the outer air, the other duct communicating at'its upper end with the outer air and opening at its lower end.

into said first chamber, a' passage way leading from the lower portlon of the second chamber to saidsecond duct of the appliance at itsupper end and temperature affecting means within the second chamber.

11. In an apparatusof the class described,-

the combination with a structure including a storage room and a first and a second chamchamber, an appliance in the. "first chamber comprising two uprightducts and means for affecting the temperature thereof, one duct opening at its upper end near the ceiling of the first chamber and at its lower end into the outer air, the other duet communicating at its upper end with the outer air and 0' ening at its lower end into said first cham er, an inter-chamber duct leading from the lower portion of the second chamber to the first chamber, branches leading from said inter-chamber duct, one joining said first ap- 1 pliance duct near the upper end thereof and the other joining said second appliance duct near its upper end, valves in said branches and temperature affecting means within said second chamber.

12. In aii apparatus of the combination with a structure including the cl describeail a storage room and a first and a second chamber superimposing said room, a pair of conduits for said storage room, one opening at.

its upper end in the upper portion of the first. chamber and at its lower end near the ceiling of the storage room, the other opening at its upper end at the lower portion of the second chamber and at its lower end at a, point beneath the opening of said'first con.-

'duit'in said storage room, an appliance in the first chamber comprising two upright ducts, and means for refrigerating the same,

one duct opening at its upper end near the ceiling of the first chamber and at its lower end into the outer air, the other duct opening at its upper end into the outer air and at its lower end into the first chamber, temperature affecting means within the second I the upper portion of the primary chamber and at its other end near the ceiling of the storage room, the other conduit opening at one end at the lower portion of the secondary chamber and at its other end at a point beneath the opening of said first condult in said -stora e room, an appliance in the primary cham er comprising two upright ducts and refrigerating means afl'ecting said ducts, one duct opening at its upper end near the ceiling of the primary chamber and at its lower end into the outer air, the other duct opening at its upper end into the outer air and at its lower end into the primary chamber, refrigerating means in the secondary chamber, and blower mechanism for blowing air from the rimary chamber into the secondary chamer. a

14. In an apparatus of the class described, the combination with a structure including a storage room and a primary chamber and a secondary chamber, a pair of conduits for said storage room, one opening at one end in the upper portion of the primary chamber and at its other end near the ceiling of the storage room, the other conduit opening at one end at the lower portion of the secondary chamber and at its other end at a point beneath the'openin'g of said first conduit in said storage room, an appliance in the primary chamber comprising two upright ducts and refrigerating means arranged to afl'ect said ducts, one duct opening at its upper end near the ceiling of the primary chamber and at its lower end into the outer air, the other duct opening at its upper end into the outer air and at Its lower end into the primary chamber, a passageway leading from the upper portion of thesecondary chamberto the I upper end of one of said appliance ducts, re-

frlgerating means in the secondary chamber and-blower mechanism for blowing air from the primary chamber into the secondary chamber.

15. In anapparatus of the class described, the combination with a structure including astorage room and a primary chamber and a secondary chamber, a pair of conduits for said storage room, each opening atone end thereof in the storage room, one opening at the other end in the upper portion of the primary chamber, the other conduit opening at its other end at the lower portion of the secondary chamber, an appliance in the primary chamber comprising two upright ducts and refrigerating means therefor, one duct opening at its upper end near the ceiling of the primary chamber and at its lower end into the outer air, the other duct opening at its upper end into the outer air and at its lower end into the primary chamber, a passageway leading from the upper portion of the secondary chamber to the upper end of said second duct of the appliance, refrigerating means in the secondary chamber, and blower mechanism for blowing air from the 1primary chamber into the secondary chamer. 16. In an apparatus of the class described, the combination with a structure including a storage room and a primary chamber and a secondary chamber, a pair of conduits for end into the outer air, the other duct opening at its upper endinto the outer air and at its lower end into the primary chamber, a passageway leading from the upper portion of the secondary chamber to the upper end of said first duct of the appliance, refrigerating means within the secondary chamber and blower mechanism for blowing air from the 1p'imary chamber into the secondary chamr.

- 17 In an apparatus of the class described, the combination with a structure including a storage room and a primary chamber and a secondary chamber, a pair of conduits for said storage room, one opening at one end i in the upper portion of the primary chamber and at its other end near the ceiling of the storage room, the other conduit opening at one end at the lower portion of the secondary chamber and at its other end at a point beneath the opening of said first conduit in said storage room, an appliance in the primary chamber comprising two upright ducts, refrigerating means arranged to afi'ect said ducts, one duct opening at its upper end near the ceiling of the primary chamber and at its lower end into the outer air, the other duct opening at its upper end into the outer air and at its lower end into the primary chamber, a passageway leading from the lower portion of the secondary 'chamber'to the upper end of one of s'aid appliance ducts,

1,8. In an apparatus of thef'classdescribed, .the combination with a-structure including a room and a' first chamber and a secstoragle nd c amber, a pair of conduits for the storage room, each opening at one end thereof in said room, one opening at the other end in the upper portion :of the first chamber,- the other-conduit opening at its other end'iat the lower portion of the. second chamber, an appliance in the first chamber comprising two upright ducts and means for refrigerQ 'atlng the same, one duct opening at its upper end' near. the ceiling of the first chamber and at its lower end into the outer air, the other duct communicating atits upper endfwith' the outer air and opening at its lowerend 5. into the first chamber, refrigerating'means in the second chamber and blower mechanism for blowing air' from the into the second chamber.

'19. In an apparatus of the class a storage room anda primary chamber and a secondary chamber, the'storage room being. 1n communication with the primary chain her and withthe secondary 'c'har'nber, an appliancein the primary"chamber comprising two-upright ducts and meansfor affecting the temperaturethereof, one .duct opening at its upper end near the ceiling of the primary chamber and at itslower end'intojthe outer. air, the other 'ductcommunicating at its upper end with the outer air and opening at its lower end into the primary chamber, tem-.' perature affecting means in the- -secondary chamber and blower mechanism for blowing from the primary chamber into the sec; ondarychamber,

20. In an. apparatus of the class described, the combination with a str'ucture including astorage room and a primary chamber and a secondary chamber, -'a pairof Leondu its for the storage room,.each opening at one end. thereof into .said'room, one openingat'the other end in the upper portion of the primary chamber, the other conduit opening 'at'the' other end at the lower portion of. the" secondary chamber, an appliance in the primary chamber comprising :twou'pri'ght ducts and.

temperature affecting means therefor, one duct opening at itsupper-endlnear the ceiling of the primary chamber and at its lower end into the outer air, the other duct communicating at its upper end with the outer air and opening at its lower end .into the primary chamber, temperature affecting means in the secondary chamber and. blower end into the .outer air, thel'other .duct commun'icating at its upper end with the outer". .airfand'opening at its lower end intothe primary chamber, temperature. afiectingmeans 1 first chamber 1 'the combination wlth a'; structure including described}, the combination with a structure including:

appliance in the primary chamber comprising two upright, ducts, and temperature. af-

mechanism. blowing 'air from; the

- marychamber into the secondary chamber.

- 21, luau-apparatus of the class described,

thecombination with a structure including'a storage room and a; primary chamber anda secondary chamber,- said. chambers having valved communication, one with the other, at

"the upper portions thereof, a pair of conduits V for the storage room, each opening at one end thereof in said room, one opening at theother I end in 'the upper portion .of the primary chamber, the other conduit opening at .its

temperature afl'ecting means therefor, one

ing of theprimary chamberand at its lower duct. opening at its upper end near the 'ceil-" in the secondary member, and'blower mechanism forblo'wing air from-the primary. chamber into "the secondary chamber.

. 22; In an apparatus of the class described,

a storage roomfand a primary chamber and a secondarych'amber, a pair of conduits for said room,.'one leading from the upper porand the other-leading from the lower portion of the secondarychamber to said room, an

footing-means; associated, with said ducts, a passageway leading from the :upper end of one ductinto the secondary chamber at the upper portion thereof, the lower end of said ---duct communicating with the outer air, the 7 lower. end of the o'ther duct communicating withthe primary chamber at its lower p0r' tionxan d the-upper end. of; said second. duct c'ommunicati-ng with the outer air, temperature afiecting meansassociated with theseco'ndary chamber, and blower mechanism forblowing air from the secondary chamber into a the .Drimary'chamber. r

2331b an apparatusof the class described, is

a-ehamber, an appliance therein including .two' upright; ducts, the upper ends of said.

ducts opening near the ceiling .of .the cha'm- I -ber,.temperature affecting means associated with said ducts,'branches, one for each duct, leading from points near the upper ends of said ducts tot-he outer air, valves for sev- I 'erallyclosing or opening 'said' ducts to the outer air through said branches, the lowerend of one duct having a valvcd port at the "tion of "the primarychamb'er to said room bottom thereof, valved meansbringing the? lower end of-the bther duct'into communication with the outer air, valved meansbringing the lower portions of said ducts into communication with each other, and valved means bringing the. lower end of said second duct lower end of said second duct into communication with the lower portion of the chamr. 25. In an apparatus of the class described,

a chamber, an appliance therein including two upright ducts valved at their upper ends and piped from points near said ends to the outer air, the lower end of one duct having a valved port at the bottom thereof, valved means bringing the lower end of the other duct into communication with the outer air,

valved means bringing the lower portions of said ducts into communication with each other, and valved means bringing the lower end of said second duct into communication with the lower portion of the chamber.

26. In combination, a storage room and an appliance chamber, a pair of conduits establishing communication between the storage room and the appliance chamber, one conduit leading to the upper portion of said chamber from the upper portion of the room and including a branch disposed longitudinally medially of the room in elevatedposition adjacent the ceiling thereof, said branch being open along the top thereof to receive vair at the ceiling, the second conduit leading .fromflthe lower portion of said chamber and including a branch disposed alongside said first branch, said second branch being open alongthe lower side thereof, and an appliance in said chamber comprising two upright ducts and refrigerating means for afj fecting the temperature thereof, one duct opening at its upper end near the ceiling of the chamber and at its lower end to the outer air, the other duct opening at its upper end into the outer air and at ts lower end into the chamber.

27. In combination, a storage room and an appliance chamber, a pair of conduits establishing communication between the storage room and the appliance chamber, one conduit leading to the upper portion of said chamber from the upper portion of the room and including a branch disposed'longitudi- 'nally medially of the room in elevated positionadjacent the ceiling thereof, said branch being open along the top thereof to receive air at the ceiling, the second conduit leading from the lower portion of said chamber and of an therefrom, means for impelling air 4 along said second conduit, and an appliance in said chamber comprising two u right ducts and refrigerating means for afflict ng the temperature thereof, one duct opening at its upper end near the ceiling of the chamber and at its lower end to the outer air, the other duct opening at its upper end into the guter air and at its lower end into the cham- 28. In combination, a' storage room and an appliance chamber, a pair of conduits establishing communication between the storage room and the appliance chamber, one conduit leading to the upper portion of said chamber from the upper portion of the room and including a branch disposed lon 'tudinally medially of the room in elevate position adjacent the ceiling thereof, said branch being open along the top thereof to receive air at the ceiling, the second conduit leading from the lower portion of said chamber into the upper portion of said room and arranged to discharge air into the room alongside but beneath said branch of said first conduit, means for impelling air through said second conduit from said chamber, and an appliance in the chamber comprising two upright ducts and refrigerating means for affecting the temperature thereof, one duct opening at its upper end near the ceiling of the chamber and at its lower end-to the outer air, the other duct opening at its upper end into the enter air and at its lower end into the cham- 29. In combination, a storage room and a source of refrigerated air supply exteriorly of the room, a conduit for conducting gravi: tating air from said source into the room, said conduit including a branch extending medially along the length of the ceiling of the room and open at its lower portion for the egress of air therefrom along its length, and a conduit for the escape of air from the upper stratum in the room medially thereof.-

30. In combination, a storage room and a source of refrigerated air. supply exteriorly of the room, a conduit for conducting gravitating air from-said source into the room, said conduit including a branch extending medially along thelength of the ceiling of the room and open at 'its' lower portion for the egressof air therefrom along its length, and asecond conduit leading from the room and including a branch disposed alongside said first branch, said second branch being open at its upper, portion for the ingress thereto along its length in a stratum superimposing. the level of egress from said first branch.

31. In combination, a storage room and a source of temperature affected air supply, a conduit for conducting air from said source into the room, said conduit including a branch extending medially along the ceiling of the room and open at its upper" portion for the egress of air therefrom along its length, and a conduit for the escape of air from the room, said second conduit opening into the upper portion of the room medially thereof at a level lower than the egress level of said first conduit.

32. In combination, a storage room and a source of temperature affected air supply, a conduit for conducting air from said source into the room, said conduit including a branch extending medially along the ceiling of the room and open at its upper portion for the egress of air therefrom along its length, and a second conduit for the egress of air from the room, said second conduit including a branch extending alongside said first branch and open at its lower portion for the ingressof air thereto along its length in a stratum at a level lower than that of the level of egress of air from said first branch.

33. In combination, a storage room and a source of temperature affected air supply, a pair of conduits, each of said conduits including a branch, one extending medially along the ceiling of the room and alongside the other, one opening at its lower portion for the egress of air therefrom along its length and the other open at its upperportion for the ingress of air along its length, a blower for impelling air from said source into one of said conduits, the other conduit leading,

from the room.

34. In combination, a storage room and a source of temperature affected air supply, a conduit for conducting air into the room and a blower for impelling airfrom said source into the conduit, said conduit being arranged to direct the flow of air therefrom medially of the room along the ceiling thereof, a second conduit extending along the ceiling of the room medially thereof and open along its length, said second conduit leading from the room, the outlet from the first conduit and the opening in the second conduit being at relatively different elevations.

35. In combination, a storage room, a firstchamber and a second chamber, the room being in communication with each chamber, temperature affecting means within each chamber, a conduit within the first chamber communicating with the outside and through which air, affected by said means, g'ravitates into said chamber, a fan for blowing air from the first chamber-into the second chamber, and means for the escape of air from the second chamber to the outer air.

36. In combination, a storage room and an adjoining chamber, said room being in communciation with said chamber and also with the outer air, temperature affecting means in said chamber, a conduit, within said chamber communicating with the outside and through which, affected by said means, gravitates into the chamber, and a fan for blowing air from the chamber into said room. I

37. In combination, a storage room and a chamber, upright bafiles in said chamber stag gered to form a horizontally winding passageway therein, said baflies, in part, including connected pipes conveying therethrough a temperature affecting medium, a blower receiving its air supply from the room and discharging into one end of said passageway, said chamber at the other end of said passageway being in communication with said room.

38. In combination, a storage room and a chamber, upright baffles in the chamber staggered to form a horizontally winding passageway therein, said bafiles, in part, including connected pipes conveying therethrough a refrigerating medium, a blower receiving its air supply from the upper stratum in the room and discharging into one end of said passageway, means for conducting air from the lower portion of said chamber at the other end of said passageway to the room at a level beneath that of said upper stratum, said refrigerant conductpassageway therein, said bafiles, in part, in-

cluding conduits for a refrigerating medium, the upper portion of said chamber at one end of said passageway being in communication with the upper portion of the room at one elevation, the lower portion of said chamber at the other end of said passageway being in communication with said room at a lower elevation at the other end of said passageway.

40. In combination, a storage room and a chamber communicating with said room, temperature affecting means within the chamber, a blower receiving its air supply from said room and the outer air and discharging into said chamber, and valved means of egress for air from the chamber at the upper portion thereof and at its lower portion. v

41. In combination, a storage room and a chamber communicating. with said room, temperature afiecting means within the chamber, a blower receiving its air supply from said room and the outer air and discharging into said chamber, an upright pipe in the chamber in valved communication at its upper end with the upper portion of said chamber and in valved communication at its lower end with the lower portion of said chamber, and an egress branch issuing from said pipe, between its ends, and extending to the outside of said chamber.

42. In combination, a room, a conduit assembly including two branches disposed medially longitudinally of said room adjacent the ceiling thereof, one open along its length to the interior of the room at one elevation and the other similarly open to the room at a different elevation, said assembly including means for the ingress of gravitating air to one branch and means for the egress of gravitating air-from the other branch.

43. In combination, a room, a conduit assembly in said room disposed medially thereof and including two branches disposed medially longitudinally of said room adjacent the ceiling thereof, one open along its length to the interior of the room at one elevation and the other similarly open to thefiroom at a different elevation, said assembly including means for the ingress of gravitating air to one branch and means for the egress of gravitating air from the other branch, means for drawing the air from one branch and impelling it into the other and means for changing the temperature of the air in transit from one branch to the other.

44. In combination, a room, an overhead air ingress conduit extending medially longitudinally of the room and opening along its length into the interior of said room, an egress conduit extending longitudinally of the room and also opening along its length to the interior thereof, means for impelling into the room air of'relatively low temperature via said ingress conduit, said egress conduit being located to receive air from the room which has first descended centrally therein and thereafter moved outwardly and upwardly in its natural gravitating cycle within the room.

45. In combination, a room, an overhead air ingress conduit extending medially longitudinally of the room and opening along its length into the interior of said room, an

in valved communication at its upper ends with the upper portion of the chamber and with the outer atmosphere and each duct being in valved communication at its lower end with the lower portion of the chamber and with the outer atmosphere.

48. In combination, a storage room and chamber, upright baffles in the chamber staggered to form a horizontally winding passageway therein, said bafiles, in part including connected pipes conveying therethrough a refrigerating medium, a blower, a suction conduit for the blower having a branch extending along the ceiling of the room midwidth thereof and receiving its air supply from along the same at the uppermost stratum in the room, said blower discharging into one end of said passageway, 21- second conduit for conducting air from the lower portion of said chamber at the other end of said passageway, said second conduit having a branch extending along the ceilin of the room midwidth thereof and adapted to discharge. air therefrom along the same at a level adjacent to but beneath that of the uppermost stratum.

49. In combination, as storage room, a source of supply of temperature affected air, two conduits, one an air ingress conduit leading from said source to the room and the other an air egress conduit leading from the room back to said source, said conduits communicating at the same proximity, though at different levels, with the interior of the room, through one wall of the room near the ceiling and midway between other opposite walls of the room.

In testimony whereof, I have signed my name to this specification.

CHARLES A. MOORE.

egress conduit extending longitudinally of the room and also opening along its length tothe interior thereof, means for impelling into the room air of relatively different temperature via the ingress conduit, said egress conduit being located to receive air which has moved in directions outwardly and through different elevations in its natural gravitating cycle within the room.

46. In combination, a room, an overhead conduit for introducing refrigerated air into the room, extending medially longitudinally thereof and opening along its length into the interior of said room at a level spaced beneath the ceiling, and suction means for taking off from the ceiling of the room air which has first descended centrally therein from said first duct and thereafter moved outwardly and upwardly in its natural gravitating cycle within the room.

47. In an apparatus of the class described, a chamber, an appliance therein including two upright ducts, means for affecting the temperature of said ducts, each duct being 

